Examlex
Which of the following formed elements assist in coagulation?
Allantois
Extraembryonic membrane that accumulates nitrogenous wastes in the eggs of reptiles, including birds; contributes to the formation of umbilical blood vessels in mammals.
Umbilical Blood Vessels
The blood vessels in the umbilical cord that connect the fetus to the placenta, allowing nutrient uptake, waste elimination, and gas exchange via the mother's blood supply.
Insulator
A material or device that prevents the passage of heat, electricity, or sound.
Amniotic Fluid
The protective liquid contained within the amniotic sac of a pregnant female, which surrounds and cushions the fetus.
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